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Enhancement of bichromatic high-order-harmonic generation with a high-frequency field
Faria, CFD; Du, ML; Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.
2001
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号64期号:2页码:-
摘要Using a high-frequency field superposed to a linearly polarized bichromatic laser field composed by a wave with frequency omega and a wave with frequency 2 omega, we show it is possible to enhance the intensity of a group of high harmonics in orders of magnitude. These harmonics have frequencies about 30% higher than the monochromatic-cutoff frequency, and, within the three-step-model framework, correspond to a set of electron trajectories for which tunneling ionization is strongly suppressed. Particular features in the observed enhancement suggest that the high-frequency field provides an additional mechanism for the electron to reach the continuum. This interpretation is supported by a time-frequency analysis of the harmonic yield. The additional high-frequency field permits the control of this group of harmonics leaving all other sets of harmonics practically unchanged, which is an advantage over schemes involving only bichromatic fields.
部门归属Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Attosecond Pulse Trains Ultrashort Laser-pulses Static Electric-field Ray-atom Scattering Magnetic-fields Phase-control Emission Polarization Ionization
学科领域Physics
收录类别SCI
WOS记录号WOS:000170297300086
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13700
专题理论物理所1978-2010年知识产出
通讯作者Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.
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Faria, CFD,Du, ML,Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.. Enhancement of bichromatic high-order-harmonic generation with a high-frequency field[J]. PHYSICAL REVIEW A,2001,64(2):-.
APA Faria, CFD,Du, ML,&Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany..(2001).Enhancement of bichromatic high-order-harmonic generation with a high-frequency field.PHYSICAL REVIEW A,64(2),-.
MLA Faria, CFD,et al."Enhancement of bichromatic high-order-harmonic generation with a high-frequency field".PHYSICAL REVIEW A 64.2(2001):-.
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